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Finding the Fourth Proportional to 759.64, 1,048.39 and 464.97

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Solution

The fourth proportional to 759.64, 1,048.39 and 464.97 is: 641.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    759.64 : 1,048.39 = 464.97 : x
  2. Step 2: Convert to fraction form
    759.64/1,048.39 = 464.97/x
  3. Step 3: Cross multiply
    759.64x = 1,048.39 × 464.97
  4. Step 4: Simplify right side
    759.64x = 487,466.44
  5. Step 5: Solve for x
    x = 487,466.44/759.64
  6. Step 6: Final answer
    x = 641.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.